单个应用中独立的TCP发送和接收客户端

import socket

def send_data(sock, data):
    sock.sendall(data.encode())

def receive_data(sock):
    data = sock.recv(1024)
    return data.decode()

# 创建TCP连接
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect(('127.0.0.1', 12345))

# 发送数据
send_data(sock, 'Hello, World!')

# 接收数据
received_data = receive_data(sock)
print(received_data)

sock.close()

import asyncio

async def send_data_async(writer, data):
    writer.write(data.encode())
    await writer.drain()

async def receive_data_async(reader):
    data = await reader.read(1024)
    return data.decode()

async def main():
    reader, writer = await asyncio.open_connection('127.0.0.1', 12345)

    # 发送数据
    await send_data_async(writer, 'Hello, World!')

    # 接收数据
    received_data = await receive_data_async(reader)
    print(received_data)

    writer.close()
    await writer.wait_closed()

asyncio.run(main())